Count how many vowels and consonants occur in a string: Difference between revisions

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 <lang 11l>F isvowel(c)
    ‘ true if c is an English vowel (ignore y) ’
-   R c C [‘a’, ‘e’, ‘i’, ‘o’, ‘u’, ‘A’, ‘E’, ‘I’, ‘O’, ‘U’]
+   R c C (‘a’, ‘e’, ‘i’, ‘o’, ‘u’, ‘A’, ‘E’, ‘I’, ‘O’, ‘U’)
 F isletter(c)
    ‘ true if in English standard alphabet ’
-   R c C ‘a’..‘z’ | c C ‘A’..‘Z’
+   R c C (‘a’..‘z’, ‘A’..‘Z’)
 F isconsonant(c)